#include<vector>
#include<iostream>

using namespace std;

int main(){
    vector<int> nums(10,1);
    vector<string> strs(10, "hello ");

    cout << "nums's capacity is: " << nums.capacity() << endl;
    cout << "strs's capacity is: " << strs.capacity() << endl;

    nums.insert(nums.begin() + 3, 2);
    strs.insert(strs.begin() + 3, "World");

    int i = 1;
    for(vector<int>::iterator it = nums.begin(); it != nums.end(); it++){
        cout << i++ << ": " << (*it) << endl;
    }
    cout << "nums's capacity is: " << nums.capacity() << endl;
    cout << "strs's capacity is: " << strs.capacity() << endl;
}



